I bought a rak2245 kit with a gateway and a rak811 based Wisnode (v1.2 board) last month.
I tried flashing the rak811 node with a firmware found on github https://github.com/RAKWireless/RAK811_LoRaNode/tree/master/doc/AT%20Command
I used the STM Flash Loader to flash RAK811_HF_V220.127.116.11.bin with a USB cable via UART. The node does not respond on any at commands anymore, as it used to.
Any chance I can go back to the factory firmware or reflash it with a working firmware? Is there a way to verify if the node is problematic?
any help is greatly appreciated.